Dataford
Interview QuestionsInterview GuidesExperiencesCoaching
New
Pricing
Get started
Dataford
Popular roles
Software EngineerData AnalystData ScientistData EngineerBusiness AnalystAI EngineerMachine Learning EngineerProduct Manager
Browse
Browse All RolesEvery role hub, from analyst to MLBrowse All CompaniesCompany-specific interview loopsAll Interview GuidesThe full guide library
Top questions by role
Software EngineerData AnalystData ScientistData EngineerBusiness AnalystAI EngineerMachine Learning EngineerProduct Manager
Top questions by skill
SQLPythonStatisticsMachine LearningA/B TestingSystem DesignGenerative AIProduct SenseMetricsBehavioral
Browse all questions →Try a mock interview
Experiences
Practice
Mock InterviewsTimed interview simulations with feedbackCoaching1:1 coaching with people at your target companiesSuccess PathYour 6-week structured planModulesCurated lessons by topicWebinarsTalks from ex-Big Tech data leadsPlaygroundA free-form scratch editor
Learn
BlogInterview strategy and career adviceTech Job Market ReportHiring trends across data and AI rolesFor UniversitiesDataford for career centersAbout DatafordWho we are and how we build
Pricing
Build my plan
Veeam Deduplication vs Competitors
00:00
5 left

Veeam Deduplication vs Competitors

MediumSQL · PostgreSQL

Problem

What is the difference between Avamar and Data Domain deduplication?

Use the backup job data to compare how many duplicate chunks each system removed and how much storage each one saved. Return only jobs with a non-null deduplication result.

Output

  1. One row per backup job and deduplication system
  2. Columns: job_name, dedup_system, total_chunks, duplicate_chunks, dedupe_ratio, storage_saved_gb
  3. Ignore rows where dedupe_ratio is NULL
  4. Sort by job_name, then dedup_system

Schema

backup_jobs
ColumnTypeDescription
job_idPKINTUnique backup job identifier
job_nameVARCHAR(100)Backup job name
total_chunksINTTotal chunks processed by the job
chunk_size_mbNUMERIC(10,2)Average chunk size in megabytes
deduplication_metrics
ColumnTypeDescription
metric_idPKINTUnique metric row identifier
job_idINTReferences backup_jobs.job_id
dedup_systemVARCHAR(50)Deduplication system name, such as Avamar or Data Domain
duplicate_chunksINTNumber of duplicate chunks detected
dedupe_ratioNUMERIC(6,4)Recorded deduplication ratio, may be null for incomplete runs
Tablesbackup_jobsdeduplication_metrics
Interviewer

Your question is Veeam Deduplication vs Competitors. Start with the requirements and the two tables in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

You need to log in / sign up to run or submit.
CodePostgreSQL
Sign up free to run your codeLog inLn 1
Run your query to see results here.